The white isn't expensive. If you don't need all the hoopla and just want to us an app to have 720 @ 120 it's a good price ($199). But the black edition is expensive (although you get the remote). If you have an iphone with hotspot, an ipod or ipad you can use it as a remote.

The only one that does 720/120p is the Black Version. The others are capped at 720/60p. Once you take into consideration the cost of the remote, the black is only $20 more than the silver. Right now, the Black or White are the only two that I'd consider, with Black being a better value (2.7k at $400 is a steal).